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Tag setPropertyActionListener

Register an ActionListener instance on the UIComponent associated with the closest parent UIComponent custom action. This actionListener will cause the value given by the "value" attribute to be set into the ValueExpression given by the "target" attribute.

The implementation of this tag creates a special ActionListener instance and registers it on the ActionSource associated with our most immediate surrounding instance of a tag whose implementation class is a subclass of UIComponentTag. This tag creates no output to the page currently being created.

The ActionListener instance created and installed by this tag has the following behavior and contract.

Only create and register the ActionListener instance the first time the component for this tag is created

The "target" and "value" tag attributes are ValueExpression instances and are stored unevaluated as instance variables of the listener.

When the listener executes, perform the following:

Call getValue() on the "value" ValueExpression.

If value of the "value" expression is null, call setValue() on the "target" ValueExpression with the null value.

If the value of the "value" expression is not null, call getType() on the "value" and "target" ValueExpressions to determine their property types.

Coerce the value of the "value" expression to the "target" expression value type following the Expression Language coercion rules. Call setValue() on the "target" ValueExpression with the resulting value.

If either coercion or the execution of setValue() fails throw an AbortProcessingException.

Tag Information

Tag Class

com.sun.faces.taglib.jsf_core.SetPropertyActionListenerTag

TagExtraInfo Class

None

Body Content

empty

Display Name

None

Attributes

Name

Required

Request-time

Type

Description

value

true

false

javax.el.ValueExpression(must evaluate to java.lang.Object)

ValueExpression to be stored as the value of the target attribute.

target

true

false

javax.el.ValueExpression(must evaluate to java.lang.Object)

ValueExpression that is the destination of the value attribute.

for

false

false

javax.el.ValueExpression(must evaluate to java.lang.String)

If present, this attribute refers to the value of one of the exposed attached objects within the composite component inside of which this tag is nested.